Demountable rim



Sept. 7 1926. Y 1,599,210

J. G. CLARK DEMOUNIABLEI RIM Filed June 6v 1924 Patented Sept. 7, 1926. *i l UNITED-STATES y JAMEs G. CLARK;r or BosToN, MAssncHUsE'r'rs; i

DEMOUNTABLE BIM.

Application filed Tune 6,

This invention relates to an improved denountable rim for vehicle wheels and is especially adapted for use with pneumatic automobile tires.

The object of the invention is to provide a two-part demountable rim from whichA the tire can be readily removed, and to which it can be firmly and easily attached.

. The invention consists vin a two-part demountable rim for vehicle wheels as set forth in the following specification and particularly as pointed out in the-claim thereof.

Referring to the drawings:

Figure 1 is a central longitudinal section throughr a disc type vehicle wheel, a demountable rim embodying my invention bel ing illustrated attached thereto. y

Fig. 2V is a frontv elevation of a portion of the vehicle wheel and demountable rim illustrate'din Fig. 1. 4 7 Fig. Bis a plan view ofa portion of the main rim section of the demountable rim..

Fig. l is a detail plan view of aportion ofthe auxiliary rim section of the demountable rim, a portion thereof being broken away and illustrated in section.` Fig. 5 is a sectional view similar to Fig. 1, but illustrating a demountable rimembodying my invention applied to a wooden type lof vehicle wheel. Y

Like numerals refer to like parts throughout the several viewsof the drawings. n

In the drawings, A represents a portion ofy a disc type, vehicle `wheel in which 6 is a hub, 7 Va disc body portion, and 8 an outwardly extending circumferential flange, preferably formed integral with said body portion and constituting apermanent rim for said vehiclewheel. The permanent rim 8 has a beveled'shouldered portion 9 extending entirely therearound, while the outer portion of said permanent rim has an inwardly. extending flange 10 lalso extending entirely therearound. Mounted upon the permanent rim 8 of the vehicle wheel A is a demountable rim B, preferably of a type for holding a quick detachable straight side form of pneumatic tire, although said demountable rim may be of the clincher type, if itis so desired. The demountable rim B embodies therein a main rim section 11 and an auxiliary rim section 12. The main rim section 11 comprises Va cylindrical body portion 13 which encircles vthe permanent rim 8', and said body portion 18 has avbeveled shoulder 14 formed upon 1924. serial No. 715,402.

vto be more fully explained, said surface '15 converging toward the surface of the shoulder l14C, while projecting outwardlyfrom the outer side thereofr is the usual tire retaining side flange 16. 1 Upon the opposite edge 'of the main rim section 11 from the side 'flange 16 4a plurality of tongues 17 are provided7 said tonguesbeing located atfintervals along the edge of said rim sections. Each tongue 1,599,210 PATE-NT ori-"icc,

17 has an opening 1'8 providedl therein as p illustrated in Fig. 3.V

The auxiliary rim section `A12 embodies.

therein a body portion 19 which encircles -and closely fits a portion oftheperiphery of the permanent rim 8, and the `outer sursection 112 is a flange 21 and said auxiliary face off said bodyportionisbeveled at 2O to engagethe beveledsurfac'e- 15 of the main rim section 11. Extending-inwardly fromr the body portion 19 of theauxiliary :rim

rim section is'detachably secured to the: i

iange 10 ofthe permanent rim 8 through the medium of, a pluralityof bolts 22 which `extend through said flanges'l() and 21.` The auxiliary rim sectionfi12 isl also provided* y with a tireretaining side ange' 28, the latter f having openings 24 formedv therein to .receivethe tongues 17 ofthe main rim section 11.

The rim sections 11 and 12 are securely held together by aplurality of locking members 25 whichV are fastened to the flange 21 of the auxiliary rim section 12 by bolts '26, said locking members25 being provided with tongues 27 which project throughthe open ings 18 provided inthe tongues '17 of the main rim section 11, the openings 18 vbeing p 'so positioned that theinner surfaceof'the tongues 27 will contact with theouter surface of the side flange 28 and thereby prevent saidk rim sections from spreading relatively t0 eachother. 4 i

When in use, the demountable rim B with the tire mounted thereon may be removed vfrom the permanent rim 8 of the vehicle i 'wheel A by simply removingthe bolts 22,

the demountable'rim ythen being easilyl dis- ,Y

engaged from the permanent rim 8 by slid- 'lo ing the former upon the latter toward'the right in Fig. 1, and a spare Atire may always be mounted upon said demountable rim B', in readiness: to be applied to the vehicle Wheel.

When it is desired to remove the tire from the demountable rim, the same isv accomplished by removing the bolts 26 and removing the locking members 25 from the openings 18 in thev main rim section ll, and said auxiliary rim section 12 may then be removedI from within the main? rimi section 11,7 thereby permittingv a tire, which., when inr position,` isj mounted: upon the bodyvv portion 1%3 of the marin rim"r section ll between the side Hansel@ and-23 to be removed 'from said main rim section;

When the demountableI rim B is mounted and thev principal function performed by the locking;r members 25 is to hold the rim sec- Y tionsll and l2 togetherwhen the demountable rim, als a whole, is removed from the vehicle wheel. a

In Fig'. 5 I have illustrated a modiiied vembodiment oit'my invention: in which a demountable rim D is illustrated mounted lupon a well' known typeof' vehicle wheel C provided with'a wooden felice 28 around the periphery of'whichf isa metal elloeband 28, the latter beingl provided with a circumierentiaflly extending stop flange .2Q-at one side thereof. The demountable rim D comprises the main rim section 80 identical in construction with the main: rim section ll of the demountable rim1 B previously described, except thatdsaidf rimfsectioir 80 is vtoward the left in Fig'. 5.

j-inwardly projecting'.annular flange 'termed provided with an inwardly extending circumferential flange 3l which abuts against the outwardly extending circumferential stop flange 29 provided upon the Yfelice band' 28 and said flanges co-op'erateto prevent a lateral movement of the demountable rim D upon the wheel laterally of said wheelv A rim section l2 is detachably secured to the main rim section 30 of the demountable rim D by a plurality of locking' members 25.7 said arviliary rim section and locking* members; being' eX actly the saine as previously described in connection with the demountable r'm Bf A demountable rim comprising, in combi# nation7V a' main rim section provided with a shouldered portion extending` therearound having' converging beveled surfaces, said main rim section also beine" provided with a plurality of tongues formed thereon, said tongues having` openingsthereiin an auxu iliary rim section mounted within said mai-n riinsectionl at one side thereof and Vprovided with a. beveled surface abutting;` against an adjacent beveled surface of said main rim sectiom said auxiliary rim section also provided with openings therein, andy with an integral therewith and adapted tor m the side of a wheel", said;l tongues ot; mainy rim sections projecting` tirouujh openings oft said auxiliary rim sectionvv locking` members fast to the fla-nge ot auxiliary rimy sect-ion and projectingy throu i the openingsA in said tongues said members holding; said rim sections together.

In testimony whereof I have hereunto set my hand. I

,ie-Mns G. ennuis. 

